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https://issues.apache.org/jira/browse/HDFS-5710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13869822#comment-13869822
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Hudson commented on HDFS-5710:
------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #4992 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/4992/])
HDFS-5710. FSDirectory#getFullPathName should check inodes against null.
Contributed by Uma Maheswara Rao G. (jing9:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1557803)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
> FSDirectory#getFullPathName should check inodes against null
> ------------------------------------------------------------
>
> Key: HDFS-5710
> URL: https://issues.apache.org/jira/browse/HDFS-5710
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Ted Yu
> Assignee: Uma Maheswara Rao G
> Fix For: 2.4.0
>
> Attachments: HDFS-5710.patch, hdfs-5710-output.html
>
>
> From
> https://builds.apache.org/job/hbase-0.96-hadoop2/166/testReport/junit/org.apache.hadoop.hbase.mapreduce/TestTableInputFormatScan1/org_apache_hadoop_hbase_mapreduce_TestTableInputFormatScan1/
> :
> {code}
> 2014-01-01 00:10:15,571 INFO [IPC Server handler 2 on 50198]
> blockmanagement.BlockManager(1009): BLOCK* addToInvalidates:
> blk_1073741967_1143 127.0.0.1:40188 127.0.0.1:46149 127.0.0.1:41496
> 2014-01-01 00:10:16,559 WARN
> [org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor@93935b]
> namenode.FSDirectory(1854): Could not get full path. Corresponding file
> might have deleted already.
> 2014-01-01 00:10:16,560 FATAL
> [org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor@93935b]
> blockmanagement.BlockManager$ReplicationMonitor(3127): ReplicationMonitor
> thread received Runtime exception.
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.getFullPathName(FSDirectory.java:1871)
> at
> org.apache.hadoop.hdfs.server.namenode.INode.getFullPathName(INode.java:482)
> at
> org.apache.hadoop.hdfs.server.namenode.INodeFile.getName(INodeFile.java:316)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy.chooseTarget(BlockPlacementPolicy.java:118)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWorkForBlocks(BlockManager.java:1259)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWork(BlockManager.java:1167)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3158)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3112)
> at java.lang.Thread.run(Thread.java:724)
> {code}
> Looks like getRelativePathINodes() returned null but getFullPathName() didn't
> check inodes against null, leading to NPE.
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